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[Color Doppler evaluation of a specific left ventricular flow pattern in a case of left ventricular pseudoaneurysm]
M Shakudo1, J Yoshikawa, K Yoshida
1Department of Cardiology, Kobe General Hospital.
Insights
This case study highlights Doppler echocardiography
Area of Science:
- Cardiovascular Imaging
- Echocardiography
- Hemodynamics
Background:
- Left ventricular pseudoaneurysm is a rare but serious cardiac condition.
- Accurate diagnosis is crucial for appropriate management.
- Conventional imaging may not always reveal the dynamic flow patterns.
Observation:
- A patient presented with early systolic and diastolic murmurs.
- Two-dimensional echocardiography identified the pseudoaneurysm sac and rupture site.
- Doppler color flow mapping visualized blood flow between the ventricle and pseudoaneurysm.
Findings:
- Doppler imaging revealed two distinct flow jets: left ventricle to pseudoaneurysm during systole, and pseudoaneurysm to ventricle during early diastole.
- Continuous wave Doppler measured peak systolic flow velocity at 3 m/sec and early diastolic flow at 1.7 m/sec.
- These specific flow patterns correlated with the patient's murmurs.
Implications:
- Doppler echocardiography is highly effective in characterizing the complex hemodynamics of left ventricular pseudoaneurysms.
- This technique aids in understanding the relationship between flow dynamics and auscultatory findings.
- Advanced echocardiographic methods improve diagnostic accuracy for intricate cardiac pathologies.
Abstract:
This report describes a case of left ventricular pseudoaneurysm examined by phonocardiography, two-dimensional echocardiography, Doppler color flow mapping, continuous wave and conventional pulsed Doppler echocardiography. The patient had early systolic and early diastolic murmurs. The pseudoaneurysm sac and the site of left ventricular rupture were identified by two-dimensional echocardiography. The flow between the left ventricle and the pseudoaneurysm were imaged by Doppler color flow mapping. Two jets from the left ventricle were directed toward the aneurysm during systole, and from the aneurysm toward the left ventricle in early diastole. Continuous wave Doppler and high pulse repetition frequency Doppler echocardiography demonstrated the maximum flow velocity in systole to be 3 m/sec and in early diastole, 1.7 m/sec. Those flow patterns between the left ventricle and the pseudoaneurysm could have been closely related to the murmur. Doppler echocardiography thus proved useful for detecting specific flow patterns related to a left ventricular pseudoaneurysm.